Q. The dimensional formula for root mean square velocity is

1796 290 Physical World, Units and Measurements Report Error

A

$[M^{0} L T^{- 1}]$

88%

B

$[M^{0} L^{0} T^{- 2}]$

4%

C

$[M L^{- 1} T^{- 1}]$

4%

D

$[M L T^{- 2}]$

4%

Solution:

$v_{r m s} = [v] = L T^{- 1} = [M^{0} L T^{- 1}]$